Home / 79,071.74-109,154.67-50,429.87

Finding the Fourth Proportional to 79,071.74, 109,154.67 and 50,429.87

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Solution

The fourth proportional to 79,071.74, 109,154.67 and 50,429.87 is: 69,615.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,071.74 : 109,154.67 = 50,429.87 : x
  2. Step 2: Convert to fraction form
    79,071.74/109,154.67 = 50,429.87/x
  3. Step 3: Cross multiply
    79,071.74x = 109,154.67 × 50,429.87
  4. Step 4: Simplify right side
    79,071.74x = 5,504,655,817.99
  5. Step 5: Solve for x
    x = 5,504,655,817.99/79,071.74
  6. Step 6: Final answer
    x = 69,615.97

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.